As a search engine, Google/Bing/Yahoo try to serve the best response to the user. Intent is important factor and getting local/relevent result is neccessary.
CTR is important because it reflect the usefulness of site. In more depth, search engine provide personalized results , therefore it is always better chance to rank higher for specific set of users ( for non bounced user). Google chrome is most used browser world wide and it gather statistics about site usage and behaviour. Better ctr and more usage of site will definitely contribute quality ranking score.
I advise to make user aquistion process simple and effective. Ranking will be improve definitely.